#0071D8
Closest named color: Cerulean Blue (#056EEE). oklch(55.5% 0.179 254.5), rgb(0, 113, 216).
Aa
White text reads best on this color (4.82:1).
About this color
#0071D8 is a medium-dark, vivid blue. In OKLCH its lightness is 55%, its chroma 0.179 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean Blue (#056EEE), ΔE 0.035 away. White text reads best on it, at 4.82:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.179) |
| Temperature | cool |
| Nearest name | Cerulean Blue (#056EEE) |
| Black text | 4.35:1 |
| White text | 4.82:1 |
Values
| HEX | #0071D8 |
| RGB | rgb(0, 113, 216) |
| HSL | hsl(209, 100%, 42%) |
| OKLCH | oklch(55.5% 0.179 254.5) |
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 #0071D8 | 4.82:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #0071D8 | 4.35:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #0071D8 text on white | 4.82:1 | AA | Lc 72.7 | Content text, not long reading |
| #0071D8 text on black | 4.35:1 | AA large text | Lc -29.0 | Dividers and decoration only |
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 600.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C6DBF7
oklch(88.5% 0.045 255.6)
-
Step 300
300
#9DC4F4
oklch(80.9% 0.08 253.9)
-
Step 400
400
#66A3EF
oklch(70.6% 0.129 254.7)
-
Step 500
500
#378AEA
oklch(63.1% 0.165 254.5)
-
Step 600
600 (this color)
#0071D8
oklch(55.5% 0.179 254.5)
-
Step 700
700
#005FB7
oklch(49.1% 0.158 254.4)
-
Step 800
800
#004E98
oklch(42.8% 0.138 254.3)
-
Step 900
900
#0F4179
oklch(37.6% 0.108 254.7)
-
Step 950
950
#0B2747
oklch(27.1% 0.068 254.1)
#0071D8 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) | #337BDC | 0.037 |
| Deuteranopia (no green cones) | #006AD6 | 0.018 |
| Tritanopia (no blue cones) | #008A9A | 0.133 |
| Achromatopsia (no color) | #727272 | 0.179 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0071D8
#0071D8
oklch(55.5% 0.179 254.5)
- #9B6700
#9B6700
oklch(55.5% 0.117 74.4)
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 #0071D8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean Blue #056EEE ΔE 0.035
- Royal Blue #4169E1 ΔE 0.039
- Windows Blue #3778BF ΔE 0.052
- Mid Blue #276AB3 ΔE 0.058
- Azul #1D5DEC ΔE 0.058
- Neon Blue #4361EE ΔE 0.061
- Clear Blue #247AFD ΔE 0.062
- Bright Blue #0165FC ΔE 0.063
Use #0071D8 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.