#015BAC
Closest named color: Mid Blue (#276AB3). oklch(47.4% 0.149 253.7), rgb(1, 91, 172).
Aa
White text reads best on this color (6.78:1).
About this color
#015BAC is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.149 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.049 away. White text reads best on it, at 6.78:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.09:1 |
| White text | 6.78:1 |
Values
| HEX | #015BAC |
| RGB | rgb(1, 91, 172) |
| HSL | hsl(208, 99%, 34%) |
| OKLCH | oklch(47.4% 0.149 253.7) |
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 #015BAC | 6.78:1 | AA | Lc -87.8 | Fine for body text |
| Black text on #015BAC | 3.09:1 | AA large text | Lc 21.3 | Dividers and decoration only |
| #015BAC text on white | 6.78:1 | AA | Lc 82.7 | Fine for body text |
| #015BAC text on black | 3.09:1 | AA large text | Lc -19.2 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF8
oklch(93.6% 0.021 254.9)
-
Step 200
200
#C7DBF4
oklch(88.4% 0.041 254)
-
Step 300
300
#A1C4EF
oklch(81% 0.072 253.8)
-
Step 400
400
#6CA4E7
oklch(70.8% 0.115 253.7)
-
Step 500
500
#418BDF
oklch(63% 0.147 253.6)
-
Step 600
600
#1C73CD
oklch(55.5% 0.16 253.7)
-
Step 700
700 (this color)
#015BAC
oklch(47.4% 0.149 253.7)
-
Step 800
800
#104F90
oklch(42.7% 0.123 253.7)
-
Step 900
900
#164273
oklch(37.7% 0.097 253.8)
-
Step 950
950
#0F2743
oklch(27% 0.06 253.9)
#015BAC 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) | #2C62AF | 0.032 |
| Deuteranopia (no green cones) | #0055AA | 0.017 |
| Tritanopia (no blue cones) | #006F7B | 0.110 |
| Achromatopsia (no color) | #5B5B5B | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #015BAC
#015BAC
oklch(47.4% 0.149 253.7)
- #7D5100
#7D5100
oklch(47.3% 0.101 73.2)
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 #015BAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.049
- Dusk Blue #26538D ΔE 0.052
- Denim Blue #3B5B92 ΔE 0.053
- Peacock Blue #016795 ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.061
- Dusky Blue #475F94 ΔE 0.065
- Cobalt #1E488F ΔE 0.065
- French Blue #436BAD ΔE 0.068
Use #015BAC 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.