#154B73
Closest named color: Light Navy (#155084). oklch(39.9% 0.087 245.3), rgb(21, 75, 115).
Aa
White text reads best on this color (9.18:1).
About this color
#154B73 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.087 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.030 away. White text reads best on it, at 9.18:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.28:1 |
| White text | 9.18:1 |
Values
| HEX | #154B73 |
| RGB | rgb(21, 75, 115) |
| HSL | hsl(206, 69%, 27%) |
| OKLCH | oklch(39.9% 0.087 245.3) |
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 #154B73 | 9.18:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #154B73 | 2.28:1 | Fails | Lc 13.1 | Not readable |
| #154B73 text on white | 9.18:1 | AAA | Lc 90.8 | Preferred for body text |
| #154B73 text on black | 2.28:1 | Fails | Lc -11.5 | 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
#E0ECF6
oklch(93.7% 0.019 243)
-
Step 200
200
#C6DCF0
oklch(88.4% 0.036 245.7)
-
Step 300
300
#9EC6E9
oklch(81% 0.065 245.1)
-
Step 400
400
#66A7DE
oklch(70.7% 0.105 245.6)
-
Step 500
500
#3590D4
oklch(63.1% 0.133 245.1)
-
Step 600
600
#0079BF
oklch(55.7% 0.14 245)
-
Step 700
700
#0065A2
oklch(49% 0.125 245.5)
-
Step 800
800
#005386
oklch(42.8% 0.108 245.3)
-
Step 900
900 (this color)
#154B73
oklch(39.9% 0.087 245.3)
-
Step 950
950
#0B293F
oklch(27.1% 0.054 244.1)
#154B73 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) | #384C75 | 0.035 |
| Deuteranopia (no green cones) | #2B4472 | 0.026 |
| Tritanopia (no blue cones) | #005559 | 0.063 |
| Achromatopsia (no color) | #484848 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154B73
#154B73
oklch(39.9% 0.087 245.3)
- #673C04
#673C04
oklch(40% 0.087 65)
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 #154B73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.030
- Twilight Blue #0A437A ΔE 0.031
- Deep Sea Blue #015482 ΔE 0.033
- Dark Grey Blue #29465B ΔE 0.041
- Dusk Blue #26538D ΔE 0.050
- Cobalt #1E488F ΔE 0.050
- Charcoal #264653 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.060
Use #154B73 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.