#297AEB
Closest named color: Clear Blue (#247AFD). oklch(59.4% 0.188 258), rgb(41, 122, 235).
Aa
Black text reads best on this color (5.07:1).
About this color
#297AEB is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.188 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.027 away. Black text reads best on it, at 5.07:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.07:1 |
| White text | 4.13:1 |
Values
| HEX | #297AEB |
| RGB | rgb(41, 122, 235) |
| HSL | hsl(215, 83%, 54%) |
| OKLCH | oklch(59.4% 0.188 258) |
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 #297AEB | 4.13:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #297AEB | 5.07:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #297AEB text on white | 4.13:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #297AEB text on black | 5.07:1 | AA | Lc -33.8 | 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
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFB
oklch(88.5% 0.05 257.7)
-
Step 300
300
#9CC3FC
oklch(81% 0.091 257.8)
-
Step 400
400
#64A1FB
oklch(70.8% 0.147 258)
-
Step 500
500 (this color)
#297AEB
oklch(59.4% 0.188 258)
-
Step 600
600
#046CE7
oklch(55.6% 0.204 258)
-
Step 700
700
#005AC5
oklch(49.1% 0.183 258.1)
-
Step 800
800
#014AA2
oklch(42.7% 0.156 257.8)
-
Step 900
900
#0F3F81
oklch(37.8% 0.122 258)
-
Step 950
950
#0B254B
oklch(26.9% 0.077 258.3)
#297AEB 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) | #3786EF | 0.034 |
| Deuteranopia (no green cones) | #0075E9 | 0.021 |
| Tritanopia (no blue cones) | #0095A7 | 0.143 |
| Achromatopsia (no color) | #7D7D7D | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #297AEB
#297AEB
oklch(59.4% 0.188 258)
- #A67300
#A67300
oklch(59.3% 0.124 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 #297AEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.027
- Cerulean Blue #056EEE ΔE 0.036
- Royal Blue #4169E1 ΔE 0.044
- Neon Blue #4361EE ΔE 0.060
- Dodger Blue #1E90FF ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.062
- Bright Blue #0165FC ΔE 0.062
- Water Blue #0E87CC ΔE 0.064
Use #297AEB 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.