#124F8A
Closest named color: Light Navy (#155084). oklch(42.3% 0.115 252.2), rgb(18, 79, 138).
Aa
White text reads best on this color (8.36:1).
About this color
#124F8A is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.115 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.011 away. White text reads best on it, at 8.36:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.51:1 |
| White text | 8.36:1 |
Values
| HEX | #124F8A |
| RGB | rgb(18, 79, 138) |
| HSL | hsl(210, 77%, 31%) |
| OKLCH | oklch(42.3% 0.115 252.2) |
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 #124F8A | 8.36:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #124F8A | 2.51:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #124F8A text on white | 8.36:1 | AAA | Lc 88.4 | Fine for body text |
| #124F8A text on black | 2.51:1 | Fails | Lc -13.8 | Not readable |
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 800.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF7
oklch(93.6% 0.019 252.9)
-
Step 200
200
#C8DBF2
oklch(88.4% 0.038 253.2)
-
Step 300
300
#A2C4EB
oklch(80.9% 0.066 252.1)
-
Step 400
400
#6EA4E2
oklch(70.6% 0.108 252.7)
-
Step 500
500
#448CD9
oklch(63% 0.137 252.2)
-
Step 600
600
#2175C7
oklch(55.7% 0.149 252.2)
-
Step 700
700
#1262AC
oklch(49.2% 0.138 252.1)
-
Step 800
800 (this color)
#124F8A
oklch(42.3% 0.115 252.2)
-
Step 900
900
#18436F
oklch(37.7% 0.089 251.8)
-
Step 950
950
#102741
oklch(26.9% 0.057 253.1)
#124F8A 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) | #31538C | 0.030 |
| Deuteranopia (no green cones) | #1C4989 | 0.017 |
| Tritanopia (no blue cones) | #005D65 | 0.085 |
| Achromatopsia (no color) | #4E4E4E | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124F8A
#124F8A
oklch(42.3% 0.115 252.2)
- #6C4400
#6C4400
oklch(42.3% 0.091 71.6)
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 #124F8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.011
- Dusk Blue #26538D ΔE 0.020
- Deep Sea Blue #015482 ΔE 0.022
- Cobalt #1E488F ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.043
- Twilight Blue #0A437A ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.055
- Twilight #4E518B ΔE 0.065
Use #124F8A 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.