#015ECF
Closest named color: Azul (#1D5DEC). oklch(50.7% 0.19 258.4), rgb(1, 94, 207).
Aa
White text reads best on this color (5.99:1).
About this color
#015ECF is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.190 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.046 away. White text reads best on it, at 5.99:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.190) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.50:1 |
| White text | 5.99:1 |
Values
| HEX | #015ECF |
| RGB | rgb(1, 94, 207) |
| HSL | hsl(213, 99%, 41%) |
| OKLCH | oklch(50.7% 0.19 258.4) |
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 #015ECF | 5.99:1 | AA | Lc -84.3 | Fine for body text |
| Black text on #015ECF | 3.50:1 | AA large text | Lc 25.0 | Dividers and decoration only |
| #015ECF text on white | 5.99:1 | AA | Lc 79.1 | Fine for body text |
| #015ECF text on black | 3.50:1 | AA large text | Lc -22.7 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFC
oklch(88.6% 0.051 258.4)
-
Step 300
300
#9CC3FC
oklch(81% 0.091 257.8)
-
Step 400
400
#65A1FB
oklch(70.8% 0.147 258.3)
-
Step 500
500
#3786F9
oklch(63.2% 0.188 258.3)
-
Step 600
600
#086CE8
oklch(55.7% 0.205 258.3)
-
Step 700
700 (this color)
#015ECF
oklch(50.7% 0.19 258.4)
-
Step 800
800
#0349A3
oklch(42.6% 0.158 258.5)
-
Step 900
900
#103F81
oklch(37.8% 0.122 258.2)
-
Step 950
950
#0B254C
oklch(27% 0.079 258.6)
#015ECF 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) | #006CD3 | 0.036 |
| Deuteranopia (no green cones) | #005BCD | 0.008 |
| Tritanopia (no blue cones) | #007A8D | 0.143 |
| Achromatopsia (no color) | #636363 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #015ECF
#015ECF
oklch(50.7% 0.19 258.4)
- #865C00
#865C00
oklch(50.7% 0.106 77.8)
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 #015ECF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.046
- Warm Blue #4B57DB ΔE 0.055
- Royal Blue #4169E1 ΔE 0.059
- Mid Blue #276AB3 ΔE 0.060
- Cerulean Blue #056EEE ΔE 0.061
- Blue Blue #2242C7 ΔE 0.064
- Neon Blue #4361EE ΔE 0.066
- Bright Blue #0165FC ΔE 0.071
Use #015ECF 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.