#25497B
Closest named color: Light Navy (#155084). oklch(40.5% 0.094 257.1), rgb(37, 73, 123).
Aa
White text reads best on this color (9.06:1).
About this color
#25497B is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.094 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.024 away. White text reads best on it, at 9.06:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.31:1 |
| White text | 9.06:1 |
Values
| HEX | #25497B |
| RGB | rgb(37, 73, 123) |
| HSL | hsl(215, 54%, 31%) |
| OKLCH | oklch(40.5% 0.094 257.1) |
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 #25497B | 9.06:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #25497B | 2.31:1 | Fails | Lc 13.4 | Not readable |
| #25497B text on white | 9.06:1 | AAA | Lc 90.6 | Preferred for body text |
| #25497B text on black | 2.31:1 | Fails | Lc -11.7 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CDDAEE
oklch(88.5% 0.031 258.9)
-
Step 300
300
#AAC3E5
oklch(81% 0.055 256.1)
-
Step 400
400
#7DA3D7
oklch(70.8% 0.087 256.4)
-
Step 500
500
#5C8BCD
oklch(63.2% 0.113 257)
-
Step 600
600
#4174BA
oklch(55.7% 0.122 256.8)
-
Step 700
700
#3361A0
oklch(49.2% 0.113 256.8)
-
Step 800
800 (this color)
#25497B
oklch(40.5% 0.094 257.1)
-
Step 900
900
#274268
oklch(37.7% 0.073 257.1)
-
Step 950
950
#17273D
oklch(27% 0.047 256.6)
#25497B 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) | #324D7D | 0.020 |
| Deuteranopia (no green cones) | #26457A | 0.012 |
| Tritanopia (no blue cones) | #00555C | 0.076 |
| Achromatopsia (no color) | #494949 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #25497B
#25497B
oklch(40.5% 0.094 257.1)
- #624200
#624200
oklch(40.5% 0.085 77.5)
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 #25497B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.024
- Twilight Blue #0A437A ΔE 0.029
- Cobalt #1E488F ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.035
- Dusk Blue #26538D ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.063
Use #25497B 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.