#154177
Closest named color: Twilight Blue (#0A437A). oklch(37.7% 0.104 255.6), rgb(21, 65, 119).
Aa
White text reads best on this color (10.22:1).
About this color
#154177 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.104 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.008 away. White text reads best on it, at 10.22:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.05:1 |
| White text | 10.22:1 |
Values
| HEX | #154177 |
| RGB | rgb(21, 65, 119) |
| HSL | hsl(213, 70%, 27%) |
| OKLCH | oklch(37.7% 0.104 255.6) |
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 #154177 | 10.22:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #154177 | 2.05:1 | Fails | Lc 10.6 | Not readable |
| #154177 text on white | 10.22:1 | AAA | Lc 93.4 | Preferred for body text |
| #154177 text on black | 2.05:1 | Fails | Lc -9.1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C7DBF6
oklch(88.5% 0.043 255.9)
-
Step 300
300
#A0C3F3
oklch(80.9% 0.078 256.4)
-
Step 400
400
#6AA3ED
oklch(70.7% 0.125 255.5)
-
Step 500
500
#3F8AE7
oklch(63.2% 0.159 255.4)
-
Step 600
600
#1971D5
oklch(55.6% 0.173 255.6)
-
Step 700
700
#085EB9
oklch(49.1% 0.161 255.7)
-
Step 800
800
#0E4D96
oklch(42.7% 0.134 255.9)
-
Step 900
900 (this color)
#154177
oklch(37.7% 0.104 255.6)
-
Step 950
950
#0E2746
oklch(27.1% 0.066 255.2)
#154177 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) | #264679 | 0.023 |
| Deuteranopia (no green cones) | #123D76 | 0.013 |
| Tritanopia (no blue cones) | #004E56 | 0.079 |
| Achromatopsia (no color) | #414141 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154177
#154177
oklch(37.7% 0.104 255.6)
- #593A00
#593A00
oklch(37.5% 0.079 75.4)
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 #154177, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.008
- Marine Blue #01386A ΔE 0.038
- Cobalt #1E488F ΔE 0.045
- Light Navy #155084 ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.061
- Dusk Blue #26538D ΔE 0.065
Use #154177 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.