#155C93
Closest named color: Light Navy Blue (#2E5A88). oklch(46.2% 0.112 247.5), rgb(21, 92, 147).
Aa
White text reads best on this color (7.03:1).
About this color
#155C93 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.112 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.023 away. White text reads best on it, at 7.03:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.98:1 |
| White text | 7.03:1 |
Values
| HEX | #155C93 |
| RGB | rgb(21, 92, 147) |
| HSL | hsl(206, 75%, 33%) |
| OKLCH | oklch(46.2% 0.112 247.5) |
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 #155C93 | 7.03:1 | AAA | Lc -88.9 | Fine for body text |
| Black text on #155C93 | 2.98:1 | Fails | Lc 20.1 | Dividers and decoration only |
| #155C93 text on white | 7.03:1 | AAA | Lc 84.0 | Fine for body text |
| #155C93 text on black | 2.98:1 | Fails | Lc -18.0 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADBEC
oklch(88.4% 0.03 248.2)
-
Step 300
300
#A5C4E2
oklch(80.8% 0.054 247.6)
-
Step 400
400
#74A6D4
oklch(70.8% 0.086 247.1)
-
Step 500
500
#4E8FC9
oklch(63.2% 0.11 247.4)
-
Step 600
600
#2E78B5
oklch(55.6% 0.119 247.1)
-
Step 700
700 (this color)
#155C93
oklch(46.2% 0.112 247.5)
-
Step 800
800
#1D527F
oklch(42.7% 0.093 247.8)
-
Step 900
900
#1E4466
oklch(37.6% 0.073 248)
-
Step 950
950
#13283C
oklch(27% 0.046 248.8)
#155C93 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) | #425F95 | 0.041 |
| Deuteranopia (no green cones) | #2F5492 | 0.027 |
| Tritanopia (no blue cones) | #006970 | 0.079 |
| Achromatopsia (no color) | #595959 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155C93
#155C93
oklch(46.2% 0.112 247.5)
- #7D4B00
#7D4B00
oklch(46.1% 0.102 67.2)
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 #155C93, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.023
- Dusk Blue #26538D ΔE 0.026
- Denim Blue #3B5B92 ΔE 0.030
- Peacock Blue #016795 ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.036
- Light Navy #155084 ΔE 0.040
- Denim #3B638C ΔE 0.042
- Dusky Blue #475F94 ΔE 0.047
Use #155C93 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.