#25475F
Closest named color: Dark Grey Blue (#29465B). oklch(38.3% 0.057 241.2), rgb(37, 71, 95).
Aa
White text reads best on this color (9.78:1).
About this color
#25475F is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.057 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 9.78:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.14:1 |
| White text | 9.78:1 |
Values
| HEX | #25475F |
| RGB | rgb(37, 71, 95) |
| HSL | hsl(205, 44%, 26%) |
| OKLCH | oklch(38.3% 0.057 241.2) |
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 #25475F | 9.78:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #25475F | 2.14:1 | Fails | Lc 11.4 | Not readable |
| #25475F text on white | 9.78:1 | AAA | Lc 92.6 | Preferred for body text |
| #25475F text on black | 2.14:1 | Fails | Lc -9.9 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDCE8
oklch(88.6% 0.024 240.1)
-
Step 300
300
#A9C5DA
oklch(80.9% 0.042 240.5)
-
Step 400
400
#7AA7C8
oklch(70.8% 0.069 240.7)
-
Step 500
500
#5690BA
oklch(63.1% 0.088 241.5)
-
Step 600
600
#397AA6
oklch(55.7% 0.095 241)
-
Step 700
700
#2B668E
oklch(49% 0.089 241.5)
-
Step 800
800
#255473
oklch(42.8% 0.073 240.4)
-
Step 900
900 (this color)
#25475F
oklch(38.3% 0.057 241.2)
-
Step 950
950
#152937
oklch(27.1% 0.037 240.5)
#25475F 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) | #3C4760 | 0.029 |
| Deuteranopia (no green cones) | #34415F | 0.025 |
| Tritanopia (no blue cones) | #004D4F | 0.046 |
| Achromatopsia (no color) | #444444 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25475F
#25475F
oklch(38.3% 0.057 241.2)
- #593C22
#593C22
oklch(38.3% 0.057 61.7)
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 #25475F, 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 0.020
- Dark Slate Gray #2F4F4F ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.046
- Dark Teal #014D4E ΔE 0.047
- Deep Teal #00555A ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.053
- Twilight Blue #0A437A ΔE 0.054
Use #25475F 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.