#154371
Closest named color: Twilight Blue (#0A437A). oklch(37.7% 0.093 251.7), rgb(21, 67, 113).
Aa
White text reads best on this color (10.12:1).
About this color
#154371 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.093 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.016 away. White text reads best on it, at 10.12:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.07:1 |
| White text | 10.12:1 |
Values
| HEX | #154371 |
| RGB | rgb(21, 67, 113) |
| HSL | hsl(210, 69%, 26%) |
| OKLCH | oklch(37.7% 0.093 251.7) |
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 #154371 | 10.12:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #154371 | 2.07:1 | Fails | Lc 10.8 | Not readable |
| #154371 text on white | 10.12:1 | AAA | Lc 93.2 | Preferred for body text |
| #154371 text on black | 2.07:1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C7DBF3
oklch(88.4% 0.04 253)
-
Step 300
300
#A0C4ED
oklch(80.8% 0.07 252)
-
Step 400
400
#6BA5E4
oklch(70.8% 0.111 251.5)
-
Step 500
500
#3F8CDC
oklch(63% 0.143 251.9)
-
Step 600
600
#1775CA
oklch(55.7% 0.155 251.7)
-
Step 700
700
#0462AF
oklch(49.2% 0.144 251.6)
-
Step 800
800
#0C508D
oklch(42.7% 0.119 251.6)
-
Step 900
900 (this color)
#154371
oklch(37.7% 0.093 251.7)
-
Step 950
950
#0E2742
oklch(26.9% 0.059 252.4)
#154371 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) | #2D4673 | 0.027 |
| Deuteranopia (no green cones) | #1F3E70 | 0.016 |
| Tritanopia (no blue cones) | #004E54 | 0.070 |
| Achromatopsia (no color) | #414141 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154371
#154371
oklch(37.7% 0.093 251.7)
- #5C3900
#5C3900
oklch(37.7% 0.081 71.3)
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 #154371, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.016
- Marine Blue #01386A ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.045
- Light Navy #155084 ΔE 0.047
- Cobalt #1E488F ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.056
- Charcoal #264653 ΔE 0.057
Use #154371 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.