#24455C
Closest named color: Dark Grey Blue (#29465B). oklch(37.6% 0.055 240.8), rgb(36, 69, 92).
Aa
White text reads best on this color (10.09:1).
About this color
#24455C is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.055 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.007 away. White text reads best on it, at 10.09:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.08:1 |
| White text | 10.09:1 |
Values
| HEX | #24455C |
| RGB | rgb(36, 69, 92) |
| HSL | hsl(205, 44%, 25%) |
| OKLCH | oklch(37.6% 0.055 240.8) |
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 #24455C | 10.09:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #24455C | 2.08:1 | Fails | Lc 10.6 | Not readable |
| #24455C text on white | 10.09:1 | AAA | Lc 93.3 | Preferred for body text |
| #24455C text on black | 2.08:1 | Fails | Lc -9.2 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE7
oklch(88.6% 0.023 237.7)
-
Step 300
300
#A9C5D9
oklch(80.9% 0.041 239.1)
-
Step 400
400
#7BA6C7
oklch(70.6% 0.067 241.9)
-
Step 500
500
#5890B8
oklch(63.1% 0.085 241)
-
Step 600
600
#3B7AA4
oklch(55.6% 0.092 240.4)
-
Step 700
700
#2D668D
oklch(49% 0.086 241.5)
-
Step 800
800
#265472
oklch(42.8% 0.071 239.9)
-
Step 900
900 (this color)
#24455C
oklch(37.6% 0.055 240.8)
-
Step 950
950
#162936
oklch(27.1% 0.035 239.7)
#24455C 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) | #3B455D | 0.030 |
| Deuteranopia (no green cones) | #333F5C | 0.025 |
| Tritanopia (no blue cones) | #004B4D | 0.044 |
| Achromatopsia (no color) | #424242 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24455C
#24455C
oklch(37.6% 0.055 240.8)
- #573A21
#573A21
oklch(37.6% 0.056 60.6)
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 #24455C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.007
- Charcoal #264653 ΔE 0.017
- Dark Blue Grey #1F3B4D ΔE 0.038
- Dark Teal #014D4E ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.048
- Midnight Green #073B4C ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.050
- Onyx #343A40 ΔE 0.052
Use #24455C 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.