#24455E
Closest named color: Dark Grey Blue (#29465B). oklch(37.7% 0.058 243), rgb(36, 69, 94).
Aa
White text reads best on this color (10.05:1).
About this color
#24455E is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.058 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.009 away. White text reads best on it, at 10.05:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #24455E |
| RGB | rgb(36, 69, 94) |
| HSL | hsl(206, 45%, 25%) |
| OKLCH | oklch(37.7% 0.058 243) |
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 #24455E | 10.05:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #24455E | 2.08:1 | Fails | Lc 10.7 | Not readable |
| #24455E text on white | 10.05:1 | AAA | Lc 93.2 | Preferred for body text |
| #24455E text on black | 2.08:1 | Fails | Lc -9.3 | 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
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300
#A9C5DB
oklch(81% 0.043 241.8)
-
Step 400
400
#7BA6C9
oklch(70.7% 0.069 243.5)
-
Step 500
500
#5790BB
oklch(63.2% 0.089 242.5)
-
Step 600
600
#3B79A7
oklch(55.6% 0.096 243.2)
-
Step 700
700
#2C668F
oklch(49.1% 0.089 242.5)
-
Step 800
800
#265374
oklch(42.6% 0.074 243)
-
Step 900
900 (this color)
#24455E
oklch(37.7% 0.058 243)
-
Step 950
950
#162837
oklch(26.9% 0.037 244.9)
#24455E 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) | #3A455F | 0.028 |
| Deuteranopia (no green cones) | #323F5E | 0.024 |
| Tritanopia (no blue cones) | #004B4E | 0.046 |
| Achromatopsia (no color) | #424242 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #24455E
#24455E
oklch(37.7% 0.058 243)
- #573A1F
#573A1F
oklch(37.6% 0.058 62.5)
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 #24455E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.009
- Charcoal #264653 ΔE 0.021
- Dark Blue Grey #1F3B4D ΔE 0.040
- Dark Teal #014D4E ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.050
- Midnight Green #073B4C ΔE 0.051
- Twilight Blue #0A437A ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.053
Use #24455E 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.