#0D57BF
Closest named color: Blue Blue (#2242C7). oklch(48.1% 0.177 259.1), rgb(13, 87, 191).
Aa
White text reads best on this color (6.70:1).
About this color
#0D57BF is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.177 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.049 away. White text reads best on it, at 6.70:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.177) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 3.13:1 |
| White text | 6.70:1 |
Values
| HEX | #0D57BF |
| RGB | rgb(13, 87, 191) |
| HSL | hsl(215, 87%, 40%) |
| OKLCH | oklch(48.1% 0.177 259.1) |
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 #0D57BF | 6.70:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #0D57BF | 3.13:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #0D57BF text on white | 6.70:1 | AA | Lc 82.3 | Fine for body text |
| #0D57BF text on black | 3.13:1 | AA large text | Lc -19.6 | 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
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C7DBF9
oklch(88.6% 0.047 258.4)
-
Step 300
300
#A0C2F8
oklch(80.9% 0.085 259.5)
-
Step 400
400
#6BA1F5
oklch(70.8% 0.136 258.9)
-
Step 500
500
#4286F1
oklch(63.1% 0.175 259.2)
-
Step 600
600
#206DE0
oklch(55.6% 0.19 259.1)
-
Step 700
700 (this color)
#0D57BF
oklch(48.1% 0.177 259.1)
-
Step 800
800
#134A9D
oklch(42.6% 0.147 259.3)
-
Step 900
900
#173F7D
oklch(37.7% 0.115 259.2)
-
Step 950
950
#0F2549
oklch(26.9% 0.073 259.8)
#0D57BF 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) | #0064C3 | 0.034 |
| Deuteranopia (no green cones) | #0055BD | 0.008 |
| Tritanopia (no blue cones) | #007182 | 0.135 |
| Achromatopsia (no color) | #5C5C5C | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0D57BF
#0D57BF
oklch(48.1% 0.177 259.1)
- #7C5600
#7C5600
oklch(48.2% 0.1 78.9)
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 #0D57BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.049
- Mid Blue #276AB3 ΔE 0.061
- Warm Blue #4B57DB ΔE 0.069
- Azul #1D5DEC ΔE 0.073
- Majorelle Blue #3F37C9 ΔE 0.075
- Sapphire #2138AB ΔE 0.079
- Dusk Blue #26538D ΔE 0.080
- French Blue #436BAD ΔE 0.080
Use #0D57BF 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.