#2C6583
Closest named color: Denim (#3B638C). oklch(48.2% 0.076 234.5), rgb(44, 101, 131).
Aa
White text reads best on this color (6.37:1).
About this color
#2C6583 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.076 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.023 away. White text reads best on it, at 6.37:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.29:1 |
| White text | 6.37:1 |
Values
| HEX | #2C6583 |
| RGB | rgb(44, 101, 131) |
| HSL | hsl(201, 50%, 34%) |
| OKLCH | oklch(48.2% 0.076 234.5) |
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 #2C6583 | 6.37:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #2C6583 | 3.29:1 | AA large text | Lc 22.6 | Dividers and decoration only |
| #2C6583 text on white | 6.37:1 | AA | Lc 81.5 | Fine for body text |
| #2C6583 text on black | 3.29:1 | AA large text | Lc -20.4 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CDDCE5
oklch(88.6% 0.02 233.9)
-
Step 300
300
#AAC5D5
oklch(80.8% 0.037 233.9)
-
Step 400
400
#7CA7C0
oklch(70.6% 0.059 234.2)
-
Step 500
500
#5991B1
oklch(63.1% 0.076 234.8)
-
Step 600
600
#3D7B9C
oklch(55.6% 0.082 234.2)
-
Step 700
700 (this color)
#2C6583
oklch(48.2% 0.076 234.5)
-
Step 800
800
#28556D
oklch(42.9% 0.063 234.2)
-
Step 900
900
#254658
oklch(37.7% 0.05 234)
-
Step 950
950
#162934
oklch(27% 0.032 235.1)
#2C6583 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) | #576484 | 0.049 |
| Deuteranopia (no green cones) | #4B5B83 | 0.042 |
| Tritanopia (no blue cones) | #006D6F | 0.051 |
| Achromatopsia (no color) | #5F5F5F | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C6583
#2C6583
oklch(48.2% 0.076 234.5)
- #805232
#805232
oklch(48.3% 0.077 54.6)
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 #2C6583, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.023
- Peacock Blue #016795 ΔE 0.032
- YInMn Blue #415A77 ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.045
- Dusky Blue #475F94 ΔE 0.046
- Slate #516572 ΔE 0.046
- Ocean Blue #03719C ΔE 0.047
Use #2C6583 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.