#0583BE
Closest named color: Water Blue (#0E87CC). oklch(58% 0.13 239), rgb(5, 131, 190).
Aa
Black text reads best on this color (4.99:1).
About this color
#0583BE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.130 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.023 away. Black text reads best on it, at 4.99:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 4.99:1 |
| White text | 4.20:1 |
Values
| HEX | #0583BE |
| RGB | rgb(5, 131, 190) |
| HSL | hsl(199, 95%, 38%) |
| OKLCH | oklch(58% 0.13 239) |
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 #0583BE | 4.20:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #0583BE | 4.99:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #0583BE text on white | 4.20:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #0583BE text on black | 4.99:1 | AA | Lc -33.3 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C6DDED
oklch(88.5% 0.033 238.2)
-
Step 300
300
#9FC7E3
oklch(81% 0.058 239)
-
Step 400
400
#67A9D5
oklch(70.8% 0.093 239.2)
-
Step 500
500
#3592C9
oklch(63% 0.119 239)
-
Step 600
600 (this color)
#0583BE
oklch(58% 0.13 239)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557D
oklch(42.7% 0.096 238.5)
-
Step 900
900
#0D4666
oklch(37.6% 0.078 239.5)
-
Step 950
950
#0B293C
oklch(26.9% 0.05 240.3)
#0583BE 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) | #6684C1 | 0.068 |
| Deuteranopia (no green cones) | #4F75BD | 0.053 |
| Tritanopia (no blue cones) | #009298 | 0.084 |
| Achromatopsia (no color) | #7C7C7C | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0583BE
#0583BE
oklch(58% 0.13 239)
- #B16416
#B16416
oklch(58% 0.129 58.9)
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 #0583BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.023
- Nice Blue #107AB0 ΔE 0.030
- Blue NCS #118AB2 ΔE 0.031
- Steel Blue #4682B4 ΔE 0.034
- Windows Blue #3778BF ΔE 0.035
- Cool Blue #4984B8 ΔE 0.036
- Flat Blue #3C73A8 ΔE 0.052
- Off Blue #5684AE ΔE 0.053
Use #0583BE 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.