#155676
Closest named color: Deep Sea Blue (#015482). oklch(42.9% 0.082 235.4), rgb(21, 86, 118).
Aa
White text reads best on this color (8.00:1).
About this color
#155676 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.082 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.023 away. White text reads best on it, at 8.00:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.62:1 |
| White text | 8.00:1 |
Values
| HEX | #155676 |
| RGB | rgb(21, 86, 118) |
| HSL | hsl(200, 70%, 27%) |
| OKLCH | oklch(42.9% 0.082 235.4) |
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 #155676 | 8.00:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #155676 | 2.62:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #155676 text on white | 8.00:1 | AAA | Lc 87.4 | Fine for body text |
| #155676 text on black | 2.62:1 | Fails | Lc -14.7 | 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 800.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DCE9
oklch(88.4% 0.027 237.6)
-
Step 300
300
#A4C6DC
oklch(80.9% 0.048 236.6)
-
Step 400
400
#70A9CA
oklch(70.8% 0.077 234.8)
-
Step 500
500
#4793BC
oklch(63.2% 0.097 234.8)
-
Step 600
600
#227CA8
oklch(55.5% 0.106 235.2)
-
Step 700
700
#126891
oklch(49% 0.099 236.1)
-
Step 800
800 (this color)
#155676
oklch(42.9% 0.082 235.4)
-
Step 900
900
#19475F
oklch(37.8% 0.064 235)
-
Step 950
950
#102937
oklch(26.8% 0.04 235.6)
#155676 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) | #465677 | 0.048 |
| Deuteranopia (no green cones) | #394D75 | 0.039 |
| Tritanopia (no blue cones) | #005E61 | 0.050 |
| Achromatopsia (no color) | #505050 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #155676
#155676
oklch(42.9% 0.082 235.4)
- #71421F
#71421F
oklch(42.8% 0.081 55)
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 #155676, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.023
- Light Navy #155084 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.038
- Petrol #005F6A ΔE 0.040
- Dusk Blue #26538D ΔE 0.044
- YInMn Blue #415A77 ΔE 0.045
- Deep Teal #00555A ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.058
Use #155676 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.