#2A658C
Closest named color: Denim (#3B638C). oklch(48.6% 0.087 240.9), rgb(42, 101, 140).
Aa
White text reads best on this color (6.29:1).
About this color
#2A658C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.087 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.016 away. White text reads best on it, at 6.29:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.33:1 |
| White text | 6.29:1 |
Values
| HEX | #2A658C |
| RGB | rgb(42, 101, 140) |
| HSL | hsl(204, 54%, 36%) |
| OKLCH | oklch(48.6% 0.087 240.9) |
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 #2A658C | 6.29:1 | AA | Lc -86.2 | Fine for body text |
| Black text on #2A658C | 3.33:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #2A658C text on white | 6.29:1 | AA | Lc 81.1 | Fine for body text |
| #2A658C text on black | 3.33:1 | AA large text | Lc -20.8 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE8
oklch(88.6% 0.024 240.1)
-
Step 300
300
#A9C5DA
oklch(80.9% 0.042 240.5)
-
Step 400
400
#7AA7C7
oklch(70.8% 0.067 239.9)
-
Step 500
500
#5790B9
oklch(63.1% 0.086 241.2)
-
Step 600
600
#3A7AA5
oklch(55.6% 0.094 240.7)
-
Step 700
700 (this color)
#2A658C
oklch(48.6% 0.087 240.9)
-
Step 800
800
#255473
oklch(42.8% 0.073 240.4)
-
Step 900
900
#24455D
oklch(37.7% 0.057 241.9)
-
Step 950
950
#162936
oklch(27.1% 0.035 239.7)
#2A658C 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) | #53658E | 0.045 |
| Deuteranopia (no green cones) | #465C8B | 0.036 |
| Tritanopia (no blue cones) | #006F72 | 0.063 |
| Achromatopsia (no color) | #606060 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A658C
#2A658C
oklch(48.6% 0.087 240.9)
- #835326
#835326
oklch(48.7% 0.088 61.3)
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 #2A658C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.016
- Peacock Blue #016795 ΔE 0.021
- Light Navy Blue #2E5A88 ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.035
- Dusky Blue #475F94 ΔE 0.037
- Ocean Blue #03719C ΔE 0.039
- YInMn Blue #415A77 ΔE 0.043
- Sea Blue #047495 ΔE 0.044
Use #2A658C 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.