#124A6E
Closest named color: Twilight Blue (#0A437A). oklch(39.3% 0.083 242.2), rgb(18, 74, 110).
Aa
White text reads best on this color (9.41:1).
About this color
#124A6E is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.083 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.033 away. White text reads best on it, at 9.41:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.23:1 |
| White text | 9.41:1 |
Values
| HEX | #124A6E |
| RGB | rgb(18, 74, 110) |
| HSL | hsl(203, 72%, 25%) |
| OKLCH | oklch(39.3% 0.083 242.2) |
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 #124A6E | 9.41:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #124A6E | 2.23:1 | Fails | Lc 12.5 | Not readable |
| #124A6E text on white | 9.41:1 | AAA | Lc 91.4 | Preferred for body text |
| #124A6E text on black | 2.23:1 | Fails | Lc -10.9 | 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 900.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DCEE
oklch(88.4% 0.034 242.7)
-
Step 300
300
#9EC6E6
oklch(80.9% 0.062 242.7)
-
Step 400
400
#66A8D9
oklch(70.7% 0.099 242.1)
-
Step 500
500
#3491CF
oklch(63.1% 0.127 242.3)
-
Step 600
600
#007AB9
oklch(55.5% 0.132 242.1)
-
Step 700
700
#00679D
oklch(49.2% 0.117 242)
-
Step 800
800
#005481
oklch(42.7% 0.101 241.9)
-
Step 900
900 (this color)
#124A6E
oklch(39.3% 0.083 242.2)
-
Step 950
950
#0B293E
oklch(27% 0.053 242.9)
#124A6E 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) | #394B70 | 0.039 |
| Deuteranopia (no green cones) | #2C426D | 0.031 |
| Tritanopia (no blue cones) | #005357 | 0.056 |
| Achromatopsia (no color) | #464646 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124A6E
#124A6E
oklch(39.3% 0.083 242.2)
- #653A0C
#653A0C
oklch(39.3% 0.083 61.7)
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 #124A6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.035
- Light Navy #155084 ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.040
- Charcoal #264653 ΔE 0.046
- Deep Teal #00555A ΔE 0.057
- Cobalt #1E488F ΔE 0.059
- Marine Blue #01386A ΔE 0.059
Use #124A6E 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.