#25496B
Closest named color: Dark Grey Blue (#29465B). oklch(39.5% 0.071 248.8), rgb(37, 73, 107).
Aa
White text reads best on this color (9.35:1).
About this color
#25496B is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.071 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 9.35:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.24:1 |
| White text | 9.35:1 |
Values
| HEX | #25496B |
| RGB | rgb(37, 73, 107) |
| HSL | hsl(209, 49%, 28%) |
| OKLCH | oklch(39.5% 0.071 248.8) |
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 #25496B | 9.35:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #25496B | 2.24:1 | Fails | Lc 12.5 | Not readable |
| #25496B text on white | 9.35:1 | AAA | Lc 91.4 | Preferred for body text |
| #25496B text on black | 2.24:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CBDBEC
oklch(88.5% 0.029 249.8)
-
Step 300
300
#A6C4E2
oklch(80.8% 0.054 248.5)
-
Step 400
400
#76A5D4
oklch(70.6% 0.086 249.1)
-
Step 500
500
#518EC9
oklch(63.1% 0.11 249.2)
-
Step 600
600
#3277B5
oklch(55.5% 0.119 248.8)
-
Step 700
700
#24649C
oklch(49.1% 0.111 248.7)
-
Step 800
800
#20527F
oklch(42.8% 0.092 248.8)
-
Step 900
900 (this color)
#25496B
oklch(39.5% 0.071 248.8)
-
Step 950
950
#14283C
oklch(27.1% 0.046 249.9)
#25496B 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) | #3A4A6C | 0.026 |
| Deuteranopia (no green cones) | #31436A | 0.021 |
| Tritanopia (no blue cones) | #005155 | 0.057 |
| Achromatopsia (no color) | #474747 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25496B
#25496B
oklch(39.5% 0.071 248.8)
- #5F3F16
#5F3F16
oklch(39.6% 0.071 69.5)
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 #25496B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Twilight Blue #0A437A ΔE 0.040
- Charcoal #264653 ΔE 0.041
- Light Navy #155084 ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.058
- Deep Teal #00555A ΔE 0.058
- Dusk Blue #26538D ΔE 0.060
Use #25496B 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.