#1F7BF1
Closest named color: Clear Blue (#247AFD). oklch(59.8% 0.196 257.3), rgb(31, 123, 241).
Aa
Black text reads best on this color (5.16:1).
About this color
#1F7BF1 is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.196 and its hue 257°. 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 5.16:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.196) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.16:1 |
| White text | 4.06:1 |
Values
| HEX | #1F7BF1 |
| RGB | rgb(31, 123, 241) |
| HSL | hsl(214, 88%, 53%) |
| OKLCH | oklch(59.8% 0.196 257.3) |
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 #1F7BF1 | 4.06:1 | AA large text | Lc -72.7 | Content text, not long reading |
| Black text on #1F7BF1 | 5.16:1 | AA | Lc 36.8 | Non-text elements, placeholder text |
| #1F7BF1 text on white | 4.06:1 | AA large text | Lc 67.2 | Content text, not long reading |
| #1F7BF1 text on black | 5.16:1 | AA | Lc -34.4 | 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
#C3DBFD
oklch(88.5% 0.054 257.1)
-
Step 300
300
#99C3FE
oklch(80.9% 0.095 256.9)
-
Step 400
400
#5FA1FE
oklch(70.7% 0.153 257.2)
-
Step 500
500 (this color)
#1F7BF1
oklch(59.8% 0.196 257.3)
-
Step 600
600
#006DE5
oklch(55.6% 0.201 257.4)
-
Step 700
700
#005BC2
oklch(49% 0.177 257.5)
-
Step 800
800
#004AA1
oklch(42.6% 0.155 257.6)
-
Step 900
900
#073F83
oklch(37.8% 0.127 257)
-
Step 950
950
#08254D
oklch(26.9% 0.082 257.6)
#1F7BF1 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) | #3188F5 | 0.037 |
| Deuteranopia (no green cones) | #0075EF | 0.019 |
| Tritanopia (no blue cones) | #0098AA | 0.149 |
| Achromatopsia (no color) | #7E7E7E | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F7BF1
#1F7BF1
oklch(59.8% 0.196 257.3)
- #A87400
#A87400
oklch(59.7% 0.125 77.5)
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 #1F7BF1, closest first.
No curated palette has a color within ΔE 0.04 of #1F7BF1.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.019
- Cerulean Blue #056EEE ΔE 0.036
- Royal Blue #4169E1 ΔE 0.049
- Dodger Blue #1E90FF ΔE 0.056
- Bright Blue #0165FC ΔE 0.059
- Neon Blue #4361EE ΔE 0.062
- Dark Sky Blue #448EE4 ΔE 0.064
- Cornflower #6A79F7 ΔE 0.066
Use #1F7BF1 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.