#015377
Closest named color: Deep Sea Blue (#015482). oklch(41.9% 0.09 236.4), rgb(1, 83, 119).
Aa
White text reads best on this color (8.38:1).
About this color
#015377 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.090 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.018 away. White text reads best on it, at 8.38:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #015377 |
| RGB | rgb(1, 83, 119) |
| HSL | hsl(198, 98%, 24%) |
| OKLCH | oklch(41.9% 0.09 236.4) |
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 #015377 | 8.38:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #015377 | 2.50:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #015377 text on white | 8.38:1 | AAA | Lc 88.4 | Fine for body text |
| #015377 text on black | 2.50:1 | Fails | Lc -13.8 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DDEA
oklch(88.6% 0.029 234.9)
-
Step 300
300
#A1C7DF
oklch(81% 0.053 236)
-
Step 400
400
#6BA9CE
oklch(70.7% 0.084 235.9)
-
Step 500
500
#3E93C2
oklch(63.2% 0.108 236.3)
-
Step 600
600
#0D7CAE
oklch(55.5% 0.117 236.4)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800 (this color)
#015377
oklch(41.9% 0.09 236.4)
-
Step 900
900
#134762
oklch(37.8% 0.07 236.1)
-
Step 950
950
#0E2A39
oklch(27.1% 0.044 235)
#015377 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) | #415379 | 0.051 |
| Deuteranopia (no green cones) | #334976 | 0.042 |
| Tritanopia (no blue cones) | #005C60 | 0.055 |
| Achromatopsia (no color) | #4E4E4E | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #015377
#015377
oklch(41.9% 0.09 236.4)
- #713E12
#713E12
oklch(41.9% 0.09 56.6)
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 #015377, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.018
- Light Navy #155084 ΔE 0.027
- Dusk Blue #26538D ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.046
- Petrol #005F6A ΔE 0.049
- Twilight Blue #0A437A ΔE 0.050
- Deep Teal #00555A ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.055
Use #015377 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.