#2585BE
Closest named color: Water Blue (#0E87CC). oklch(59% 0.122 240.4), rgb(37, 133, 190).
Aa
Black text reads best on this color (5.17:1).
About this color
#2585BE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.122 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.021 away. Black text reads best on it, at 5.17:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.17:1 |
| White text | 4.05:1 |
Values
| HEX | #2585BE |
| RGB | rgb(37, 133, 190) |
| HSL | hsl(202, 67%, 45%) |
| OKLCH | oklch(59% 0.122 240.4) |
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 #2585BE | 4.05:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #2585BE | 5.17:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #2585BE text on white | 4.05:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #2585BE text on black | 5.17:1 | AA | Lc -34.3 | 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
#E1ECF4
oklch(93.7% 0.016 239.1)
-
Step 200
200
#C8DCEC
oklch(88.4% 0.031 242)
-
Step 300
300
#A1C6E1
oklch(80.9% 0.055 240)
-
Step 400
400
#6CA8D2
oklch(70.7% 0.088 240.2)
-
Step 500
500
#4091C6
oklch(63% 0.112 240.6)
-
Step 600
600 (this color)
#2585BE
oklch(59% 0.122 240.4)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#0A547D
oklch(42.6% 0.094 240.7)
-
Step 900
900
#154664
oklch(37.7% 0.073 240)
-
Step 950
950
#0E293B
oklch(27% 0.047 240.8)
#2585BE 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) | #6A86C1 | 0.062 |
| Deuteranopia (no green cones) | #5578BD | 0.048 |
| Tritanopia (no blue cones) | #009399 | 0.081 |
| Achromatopsia (no color) | #7E7E7E | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2585BE
#2585BE
oklch(59% 0.122 240.4)
- #B16923
#B16923
oklch(58.9% 0.123 59.9)
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 #2585BE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.021
- Steel Blue #4682B4 ΔE 0.025
- Cool Blue #4984B8 ΔE 0.025
- Blue NCS #118AB2 ΔE 0.027
- Windows Blue #3778BF ΔE 0.037
- Nice Blue #107AB0 ΔE 0.038
- Off Blue #5684AE ΔE 0.043
- Dusty Blue #5A86AD ΔE 0.048
Use #2585BE 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.