#124799
Closest named color: Cobalt (#1E488F). oklch(41.6% 0.145 259.6), rgb(18, 71, 153).
Aa
White text reads best on this color (8.79:1).
About this color
#124799 is a dark, vivid blue. In OKLCH its lightness is 42%, its chroma 0.145 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.018 away. White text reads best on it, at 8.79:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.38:1 |
| White text | 8.79:1 |
Values
| HEX | #124799 |
| RGB | rgb(18, 71, 153) |
| HSL | hsl(216, 79%, 34%) |
| OKLCH | oklch(41.6% 0.145 259.6) |
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 #124799 | 8.79:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #124799 | 2.38:1 | Fails | Lc 14.5 | Not readable |
| #124799 text on white | 8.79:1 | AAA | Lc 89.5 | Fine for body text |
| #124799 text on black | 2.38:1 | Fails | Lc -12.7 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C7DAF9
oklch(88.4% 0.048 260.2)
-
Step 300
300
#A0C2F8
oklch(80.9% 0.085 259.5)
-
Step 400
400
#6CA0F4
oklch(70.6% 0.136 259.6)
-
Step 500
500
#4486F0
oklch(63.1% 0.173 259.5)
-
Step 600
600
#246DDF
oklch(55.7% 0.188 259.5)
-
Step 700
700
#165AC2
oklch(49.1% 0.176 259.6)
-
Step 800
800 (this color)
#124799
oklch(41.6% 0.145 259.6)
-
Step 900
900
#193F7C
oklch(37.7% 0.112 259.6)
-
Step 950
950
#0F2549
oklch(26.9% 0.073 259.8)
#124799 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) | #07519C | 0.027 |
| Deuteranopia (no green cones) | #004597 | 0.011 |
| Tritanopia (no blue cones) | #005B69 | 0.110 |
| Achromatopsia (no color) | #4A4A4A | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124799
#124799
oklch(41.6% 0.145 259.6)
- #654600
#654600
oklch(41.8% 0.087 79.8)
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 #124799, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.018
- Dusk Blue #26538D ΔE 0.046
- Light Navy #155084 ΔE 0.046
- Sapphire #2138AB ΔE 0.047
- Twilight Blue #0A437A ΔE 0.053
- Blueberry #464196 ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.057
- Dark Slate Blue #483D8B ΔE 0.065
Use #124799 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.