#015EBB
Closest named color: Mid Blue (#276AB3). oklch(49.2% 0.165 255.6), rgb(1, 94, 187).
Aa
White text reads best on this color (6.32:1).
About this color
#015EBB is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.165 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.043 away. White text reads best on it, at 6.32:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.165) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.31:1 |
| White text | 6.32:1 |
Values
| HEX | #015EBB |
| RGB | rgb(1, 94, 187) |
| HSL | hsl(210, 99%, 37%) |
| OKLCH | oklch(49.2% 0.165 255.6) |
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 #015EBB | 6.32:1 | AA | Lc -85.9 | Fine for body text |
| Black text on #015EBB | 3.31:1 | AA large text | Lc 23.3 | Dividers and decoration only |
| #015EBB text on white | 6.32:1 | AA | Lc 80.7 | Fine for body text |
| #015EBB text on black | 3.31:1 | AA large text | Lc -21.1 | 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 700.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C6DBF7
oklch(88.5% 0.045 255.6)
-
Step 300
300
#9FC3F4
oklch(80.8% 0.08 256.2)
-
Step 400
400
#69A3EF
oklch(70.8% 0.128 255.7)
-
Step 500
500
#3D89E9
oklch(63% 0.163 255.8)
-
Step 600
600
#1371D7
oklch(55.6% 0.176 255.4)
-
Step 700
700 (this color)
#015EBB
oklch(49.2% 0.165 255.6)
-
Step 800
800
#0A4D97
oklch(42.7% 0.136 255.7)
-
Step 900
900
#134178
oklch(37.7% 0.106 255.4)
-
Step 950
950
#0D2646
oklch(26.8% 0.067 255.9)
#015EBB 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) | #2268BE | 0.033 |
| Deuteranopia (no green cones) | #0059B9 | 0.014 |
| Tritanopia (no blue cones) | #007583 | 0.124 |
| Achromatopsia (no color) | #606060 | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #015EBB
#015EBB
oklch(49.2% 0.165 255.6)
- #825700
#825700
oklch(49.1% 0.103 75.7)
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 #015EBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.043
- French Blue #436BAD ΔE 0.065
- Blue Blue #2242C7 ΔE 0.069
- Peacock Blue #016795 ΔE 0.070
- Denim Blue #3B5B92 ΔE 0.071
- Warm Blue #4B57DB ΔE 0.075
- Dusk Blue #26538D ΔE 0.076
- Dusky Blue #475F94 ΔE 0.077
Use #015EBB 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.