#2A648F
Closest named color: Denim (#3B638C). oklch(48.5% 0.092 243.9), rgb(42, 100, 143).
Aa
White text reads best on this color (6.32:1).
About this color
#2A648F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.092 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.015 away. White text reads best on it, at 6.32:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.31:1 |
| White text | 6.32:1 |
Values
| HEX | #2A648F |
| RGB | rgb(42, 100, 143) |
| HSL | hsl(206, 55%, 36%) |
| OKLCH | oklch(48.5% 0.092 243.9) |
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 #2A648F | 6.32:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #2A648F | 3.31:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #2A648F text on white | 6.32:1 | AA | Lc 81.2 | Fine for body text |
| #2A648F text on black | 3.31:1 | AA large text | Lc -20.6 | 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
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE9
oklch(88.4% 0.025 246.2)
-
Step 300
300
#A9C4DC
oklch(80.8% 0.045 245.2)
-
Step 400
400
#7AA6CA
oklch(70.7% 0.071 243.7)
-
Step 500
500
#578FBD
oklch(63% 0.091 244.8)
-
Step 600
600
#3A79A9
oklch(55.6% 0.099 244)
-
Step 700
700 (this color)
#2A648F
oklch(48.5% 0.092 243.9)
-
Step 800
800
#265375
oklch(42.7% 0.075 243.8)
-
Step 900
900
#24455F
oklch(37.8% 0.059 244.1)
-
Step 950
950
#162837
oklch(26.9% 0.037 244.9)
#2A648F 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) | #516591 | 0.043 |
| Deuteranopia (no green cones) | #435B8E | 0.033 |
| Tritanopia (no blue cones) | #006E73 | 0.066 |
| Achromatopsia (no color) | #606060 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A648F
#2A648F
oklch(48.5% 0.092 243.9)
- #83531F
#83531F
oklch(48.6% 0.092 64.3)
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 #2A648F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.015
- Peacock Blue #016795 ΔE 0.019
- Light Navy Blue #2E5A88 ΔE 0.029
- Denim Blue #3B5B92 ΔE 0.031
- Dusky Blue #475F94 ΔE 0.034
- Ocean Blue #03719C ΔE 0.039
- YInMn Blue #415A77 ΔE 0.045
- Sea Blue #047495 ΔE 0.047
Use #2A648F 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.