#015DCF
Closest named color: Azul (#1D5DEC). oklch(50.5% 0.192 258.6), rgb(1, 93, 207).
Aa
White text reads best on this color (6.05:1).
About this color
#015DCF is a medium-dark, vivid blue. In OKLCH its lightness is 51%, its chroma 0.192 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Azul (#1D5DEC), ΔE 0.047 away. White text reads best on it, at 6.05:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.192) |
| Temperature | cool |
| Nearest name | Azul (#1D5DEC) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #015DCF |
| RGB | rgb(1, 93, 207) |
| HSL | hsl(213, 99%, 41%) |
| OKLCH | oklch(50.5% 0.192 258.6) |
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 #015DCF | 6.05:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #015DCF | 3.46:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #015DCF text on white | 6.05:1 | AA | Lc 79.4 | Fine for body text |
| #015DCF text on black | 3.46:1 | AA large text | Lc -22.5 | 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
#9CC2FD
oklch(80.8% 0.094 259)
-
Step 400
400
#65A0FC
oklch(70.6% 0.149 259)
-
Step 500
500
#3785F9
oklch(63% 0.19 258.6)
-
Step 600
600
#0A6BE8
oklch(55.5% 0.206 258.6)
-
Step 700
700 (this color)
#015DCF
oklch(50.5% 0.192 258.6)
-
Step 800
800
#0449A3
oklch(42.6% 0.158 258.6)
-
Step 900
900
#103E82
oklch(37.6% 0.125 258.9)
-
Step 950
950
#0B254C
oklch(27% 0.079 258.6)
#015DCF 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) | #006BD3 | 0.036 |
| Deuteranopia (no green cones) | #005ACD | 0.008 |
| Tritanopia (no blue cones) | #007A8D | 0.145 |
| Achromatopsia (no color) | #626262 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #015DCF
#015DCF
oklch(50.5% 0.192 258.6)
- #855C00
#855C00
oklch(50.6% 0.105 78.5)
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 #015DCF, closest first.
No curated palette has a color within ΔE 0.04 of #015DCF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Azul #1D5DEC ΔE 0.047
- Warm Blue #4B57DB ΔE 0.055
- Royal Blue #4169E1 ΔE 0.061
- Mid Blue #276AB3 ΔE 0.062
- Blue Blue #2242C7 ΔE 0.062
- Cerulean Blue #056EEE ΔE 0.063
- Neon Blue #4361EE ΔE 0.066
- Bright Blue #0165FC ΔE 0.072
Use #015DCF 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.