#24419B
Closest named color: Cobalt (#1E488F). oklch(41.1% 0.151 266.2), rgb(36, 65, 155).
Aa
White text reads best on this color (9.11:1).
About this color
#24419B is a dark, vivid blue. In OKLCH its lightness is 41%, its chroma 0.151 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.028 away. White text reads best on it, at 9.11:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.30:1 |
| White text | 9.11:1 |
Values
| HEX | #24419B |
| RGB | rgb(36, 65, 155) |
| HSL | hsl(225, 62%, 37%) |
| OKLCH | oklch(41.1% 0.151 266.2) |
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 #24419B | 9.11:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #24419B | 2.30:1 | Fails | Lc 13.5 | Not readable |
| #24419B text on white | 9.11:1 | AAA | Lc 90.5 | Preferred for body text |
| #24419B text on black | 2.30:1 | Fails | Lc -11.8 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CAD9FB
oklch(88.5% 0.05 266.5)
-
Step 300
300
#A6C0FB
oklch(81% 0.089 266)
-
Step 400
400
#779DF8
oklch(70.8% 0.14 265.8)
-
Step 500
500
#5681F5
oklch(63.1% 0.18 266.1)
-
Step 600
600
#3D67E4
oklch(55.6% 0.196 266.1)
-
Step 700
700
#3054C6
oklch(49% 0.183 266.3)
-
Step 800
800 (this color)
#24419B
oklch(41.1% 0.151 266.2)
-
Step 900
900
#243C7F
oklch(37.7% 0.117 266.1)
-
Step 950
950
#15244A
oklch(27% 0.073 265.6)
#24419B 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) | #004E9E | 0.035 |
| Deuteranopia (no green cones) | #004399 | 0.022 |
| Tritanopia (no blue cones) | #005767 | 0.119 |
| Achromatopsia (no color) | #484848 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24419B
#24419B
oklch(41.1% 0.151 266.2)
- #5F4700
#5F4700
oklch(41.2% 0.084 86.4)
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 #24419B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.028
- Sapphire #2138AB ΔE 0.034
- Blueberry #464196 ΔE 0.045
- Dark Slate Blue #483D8B ΔE 0.054
- Dusk Blue #26538D ΔE 0.058
- Light Navy #155084 ΔE 0.060
- Twilight Blue #0A437A ΔE 0.060
- Blue Blue #2242C7 ΔE 0.071
Use #24419B 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.