#2A6583
Closest named color: Denim (#3B638C). oklch(48.1% 0.078 233.8), rgb(42, 101, 131).
Aa
White text reads best on this color (6.38:1).
About this color
#2A6583 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.078 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.024 away. White text reads best on it, at 6.38:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.28:1 |
| White text | 6.38:1 |
Values
| HEX | #2A6583 |
| RGB | rgb(42, 101, 131) |
| HSL | hsl(200, 51%, 34%) |
| OKLCH | oklch(48.1% 0.078 233.8) |
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 #2A6583 | 6.38:1 | AA | Lc -86.6 | Fine for body text |
| Black text on #2A6583 | 3.28:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #2A6583 text on white | 6.38:1 | AA | Lc 81.5 | Fine for body text |
| #2A6583 text on black | 3.28:1 | 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
#CCDCE5
oklch(88.5% 0.021 232.2)
-
Step 300
300
#AAC5D5
oklch(80.8% 0.037 233.9)
-
Step 400
400
#7BA7C1
oklch(70.6% 0.061 234.7)
-
Step 500
500
#5891B1
oklch(63% 0.077 234.4)
-
Step 600
600
#3B7B9D
oklch(55.5% 0.084 234.3)
-
Step 700
700 (this color)
#2A6583
oklch(48.1% 0.078 233.8)
-
Step 800
800
#27556D
oklch(42.8% 0.064 233.8)
-
Step 900
900
#244658
oklch(37.7% 0.05 233.4)
-
Step 950
950
#162934
oklch(27% 0.032 235.1)
#2A6583 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) | #566484 | 0.049 |
| Deuteranopia (no green cones) | #4A5B83 | 0.042 |
| Tritanopia (no blue cones) | #006D6F | 0.051 |
| Achromatopsia (no color) | #5F5F5F | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A6583
#2A6583
oklch(48.1% 0.078 233.8)
- #805132
#805132
oklch(48.1% 0.078 53.3)
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 #2A6583, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.024
- Peacock Blue #016795 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.036
- YInMn Blue #415A77 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.046
- Ocean Blue #03719C ΔE 0.047
- Sea Blue #047495 ΔE 0.047
- Dusky Blue #475F94 ΔE 0.047
Use #2A6583 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.