#2C659E
Closest named color: Peacock Blue (#016795). oklch(49.7% 0.109 251), rgb(44, 101, 158).
Aa
White text reads best on this color (6.06:1).
About this color
#2C659E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.109 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.026 away. White text reads best on it, at 6.06:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.46:1 |
| White text | 6.06:1 |
Values
| HEX | #2C659E |
| RGB | rgb(44, 101, 158) |
| HSL | hsl(210, 56%, 40%) |
| OKLCH | oklch(49.7% 0.109 251) |
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 #2C659E | 6.06:1 | AA | Lc -85.2 | Fine for body text |
| Black text on #2C659E | 3.46:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #2C659E text on white | 6.06:1 | AA | Lc 80.0 | Fine for body text |
| #2C659E text on black | 3.46:1 | AA large text | Lc -21.8 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CBDBEC
oklch(88.5% 0.029 249.8)
-
Step 300
300
#A8C4E2
oklch(81% 0.052 250.3)
-
Step 400
400
#79A5D4
oklch(70.8% 0.084 250.7)
-
Step 500
500
#558DC9
oklch(63.1% 0.109 251.4)
-
Step 600
600
#3876B5
oklch(55.5% 0.117 251.1)
-
Step 700
700 (this color)
#2C659E
oklch(49.7% 0.109 251)
-
Step 800
800
#24517F
oklch(42.7% 0.091 251.2)
-
Step 900
900
#234466
oklch(37.9% 0.07 250.8)
-
Step 950
950
#15283C
oklch(27.1% 0.045 250.9)
#2C659E 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) | #4B68A0 | 0.034 |
| Deuteranopia (no green cones) | #3B5E9D | 0.022 |
| Tritanopia (no blue cones) | #00727A | 0.082 |
| Achromatopsia (no color) | #626262 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C659E
#2C659E
oklch(49.7% 0.109 251)
- #885600
#885600
oklch(49.7% 0.107 70.8)
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 #2C659E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.026
- Denim #3B638C ΔE 0.030
- Dusky Blue #475F94 ΔE 0.031
- Denim Blue #3B5B92 ΔE 0.032
- Mid Blue #276AB3 ΔE 0.034
- French Blue #436BAD ΔE 0.038
- Ocean Blue #03719C ΔE 0.038
- Muted Blue #3B719F ΔE 0.040
Use #2C659E 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.