#297FF5
Closest named color: Clear Blue (#247AFD). oklch(61.1% 0.195 257.9), rgb(41, 127, 245).
Aa
Black text reads best on this color (5.44:1).
About this color
#297FF5 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.195 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.019 away. Black text reads best on it, at 5.44:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.44:1 |
| White text | 3.85:1 |
Values
| HEX | #297FF5 |
| RGB | rgb(41, 127, 245) |
| HSL | hsl(215, 91%, 56%) |
| OKLCH | oklch(61.1% 0.195 257.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #297FF5 | 3.85:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #297FF5 | 5.44:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #297FF5 text on white | 3.85:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #297FF5 text on black | 5.44:1 | AA | Lc -36.2 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C4DBFD
oklch(88.5% 0.053 258)
-
Step 300
300
#9AC3FE
oklch(80.9% 0.095 257.4)
-
Step 400
400
#61A1FE
oklch(70.8% 0.152 257.8)
-
Step 500
500 (this color)
#297FF5
oklch(61.1% 0.195 257.9)
-
Step 600
600
#006CE7
oklch(55.5% 0.204 257.8)
-
Step 700
700
#005BC4
oklch(49.2% 0.18 257.7)
-
Step 800
800
#004AA2
oklch(42.7% 0.156 257.7)
-
Step 900
900
#0B3E83
oklch(37.6% 0.127 258.1)
-
Step 950
950
#09254D
oklch(27% 0.081 258.1)
#297FF5 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #388BF9 | 0.034 |
| Deuteranopia (no green cones) | #0079F3 | 0.022 |
| Tritanopia (no blue cones) | #009CAE | 0.149 |
| Achromatopsia (no color) | #828282 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #297FF5
#297FF5
oklch(61.1% 0.195 257.9)
- #AD7800
#AD7800
oklch(61.1% 0.127 77.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #297FF5, closest first.
No curated palette has a color within ΔE 0.04 of #297FF5.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.019
- Dodger Blue #1E90FF ΔE 0.044
- Cerulean Blue #056EEE ΔE 0.048
- Dark Sky Blue #448EE4 ΔE 0.055
- Cornflower #6A79F7 ΔE 0.059
- Royal Blue #4169E1 ΔE 0.059
- Soft Blue #6488EA ΔE 0.061
- Chefchaouen Blue #4895EF ΔE 0.067
Use #297FF5 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.