#154C71
Closest named color: Light Navy (#155084). oklch(40% 0.084 242.9), rgb(21, 76, 113).
Aa
White text reads best on this color (9.11:1).
About this color
#154C71 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.084 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.032 away. White text reads best on it, at 9.11:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.30:1 |
| White text | 9.11:1 |
Values
| HEX | #154C71 |
| RGB | rgb(21, 76, 113) |
| HSL | hsl(204, 69%, 26%) |
| OKLCH | oklch(40% 0.084 242.9) |
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 #154C71 | 9.11:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #154C71 | 2.30:1 | Fails | Lc 13.3 | Not readable |
| #154C71 text on white | 9.11:1 | AAA | Lc 90.7 | Preferred for body text |
| #154C71 text on black | 2.30:1 | 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 900.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DCEF
oklch(88.4% 0.035 244.2)
-
Step 300
300
#9EC6E6
oklch(80.9% 0.062 242.7)
-
Step 400
400
#66A8DA
oklch(70.7% 0.1 242.7)
-
Step 500
500
#3491D0
oklch(63.1% 0.128 242.7)
-
Step 600
600
#007ABB
oklch(55.7% 0.134 242.9)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900 (this color)
#154C71
oklch(40% 0.084 242.9)
-
Step 950
950
#0B293E
oklch(27% 0.053 242.9)
#154C71 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) | #3B4D73 | 0.039 |
| Deuteranopia (no green cones) | #2E4470 | 0.030 |
| Tritanopia (no blue cones) | #005559 | 0.058 |
| Achromatopsia (no color) | #484848 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154C71
#154C71
oklch(40% 0.084 242.9)
- #673C0D
#673C0D
oklch(40% 0.084 62.4)
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 #154C71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.033
- Twilight Blue #0A437A ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.039
- Charcoal #264653 ΔE 0.050
- Dusk Blue #26538D ΔE 0.052
- Cobalt #1E488F ΔE 0.055
- Deep Teal #00555A ΔE 0.056
Use #154C71 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.