#015779
Closest named color: Deep Sea Blue (#015482). oklch(43% 0.089 233.8), rgb(1, 87, 121).
Aa
White text reads best on this color (7.95:1).
About this color
#015779 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.089 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.020 away. White text reads best on it, at 7.95:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.64:1 |
| White text | 7.95:1 |
Values
| HEX | #015779 |
| RGB | rgb(1, 87, 121) |
| HSL | hsl(197, 98%, 24%) |
| OKLCH | oklch(43% 0.089 233.8) |
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 #015779 | 7.95:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #015779 | 2.64:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #015779 text on white | 7.95:1 | AAA | Lc 87.0 | Fine for body text |
| #015779 text on black | 2.64:1 | Fails | Lc -15.1 | 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 800.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C7DDEA
oklch(88.5% 0.03 233.6)
-
Step 300
300
#A0C7DE
oklch(80.9% 0.053 234.2)
-
Step 400
400
#6AAACD
oklch(70.8% 0.083 233.6)
-
Step 500
500
#3A94C0
oklch(63.2% 0.107 233.4)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800 (this color)
#015779
oklch(43% 0.089 233.8)
-
Step 900
900
#114761
oklch(37.7% 0.07 234.5)
-
Step 950
950
#0D2A39
oklch(27.1% 0.044 234.3)
#015779 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) | #46567B | 0.055 |
| Deuteranopia (no green cones) | #374D78 | 0.044 |
| Tritanopia (no blue cones) | #006063 | 0.053 |
| Achromatopsia (no color) | #515151 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #015779
#015779
oklch(43% 0.089 233.8)
- #75401A
#75401A
oklch(43% 0.09 53.1)
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 #015779, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.020
- Light Navy #155084 ΔE 0.032
- Light Navy Blue #2E5A88 ΔE 0.039
- Petrol #005F6A ΔE 0.041
- Dusk Blue #26538D ΔE 0.043
- YInMn Blue #415A77 ΔE 0.050
- Deep Teal #00555A ΔE 0.052
- Peacock Blue #016795 ΔE 0.061
Use #015779 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.