#2474B3
Closest named color: Nice Blue (#107AB0). oklch(54.3% 0.124 247), rgb(36, 116, 179).
Aa
White text reads best on this color (4.97:1).
About this color
#2474B3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.124 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.019 away. White text reads best on it, at 4.97:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.22:1 |
| White text | 4.97:1 |
Values
| HEX | #2474B3 |
| RGB | rgb(36, 116, 179) |
| HSL | hsl(206, 67%, 42%) |
| OKLCH | oklch(54.3% 0.124 247) |
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 #2474B3 | 4.97:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #2474B3 | 4.22:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #2474B3 text on white | 4.97:1 | AA | Lc 74.0 | Content text, not long reading |
| #2474B3 text on black | 4.22:1 | AA large text | Lc -27.7 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#C9DCED
oklch(88.6% 0.031 245.1)
-
Step 300
300
#A4C5E3
oklch(80.9% 0.055 246)
-
Step 400
400
#72A6D6
oklch(70.7% 0.09 247.2)
-
Step 500
500
#4A8FCA
oklch(63.1% 0.113 246.6)
-
Step 600
600 (this color)
#2474B3
oklch(54.3% 0.124 247)
-
Step 700
700
#1A659E
oklch(49.2% 0.115 246.7)
-
Step 800
800
#195280
oklch(42.6% 0.096 247.2)
-
Step 900
900
#1C4467
oklch(37.6% 0.075 247.8)
-
Step 950
950
#12283C
oklch(26.9% 0.047 247.8)
#2474B3 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) | #5677B6 | 0.047 |
| Deuteranopia (no green cones) | #426AB2 | 0.033 |
| Tritanopia (no blue cones) | #00838B | 0.088 |
| Achromatopsia (no color) | #707070 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2474B3
#2474B3
oklch(54.3% 0.124 247)
- #9D5F00
#9D5F00
oklch(54.3% 0.12 66.8)
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 #2474B3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.019
- Flat Blue #3C73A8 ΔE 0.023
- Windows Blue #3778BF ΔE 0.026
- Mid Blue #276AB3 ΔE 0.028
- French Blue #436BAD ΔE 0.031
- Muted Blue #3B719F ΔE 0.033
- Ocean Blue #03719C ΔE 0.040
- Dull Blue #49759C ΔE 0.046
Use #2474B3 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.