#2A75AF
Closest named color: Flat Blue (#3C73A8). oklch(54.4% 0.116 245.9), rgb(42, 117, 175).
Aa
White text reads best on this color (4.92:1).
About this color
#2A75AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.116 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Flat Blue (#3C73A8), ΔE 0.016 away. White text reads best on it, at 4.92:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Flat Blue (#3C73A8) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #2A75AF |
| RGB | rgb(42, 117, 175) |
| HSL | hsl(206, 61%, 43%) |
| OKLCH | oklch(54.4% 0.116 245.9) |
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 #2A75AF | 4.92:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #2A75AF | 4.26:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #2A75AF text on white | 4.92:1 | AA | Lc 73.8 | Content text, not long reading |
| #2A75AF text on black | 4.26:1 | AA large text | Lc -27.9 | 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 600.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADCEC
oklch(88.6% 0.029 244.9)
-
Step 300
300
#A6C5E1
oklch(81% 0.052 245.8)
-
Step 400
400
#74A6D2
oklch(70.7% 0.084 245.9)
-
Step 500
500
#4E8FC6
oklch(63.1% 0.107 246.1)
-
Step 600
600 (this color)
#2A75AF
oklch(54.4% 0.116 245.9)
-
Step 700
700
#20659A
oklch(49.1% 0.108 246.1)
-
Step 800
800
#1D537D
oklch(42.8% 0.09 245.8)
-
Step 900
900
#1E4564
oklch(37.8% 0.069 245.1)
-
Step 950
950
#13283B
oklch(26.9% 0.045 247.5)
#2A75AF 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) | #5A77B1 | 0.047 |
| Deuteranopia (no green cones) | #476BAE | 0.034 |
| Tritanopia (no blue cones) | #00838A | 0.083 |
| Achromatopsia (no color) | #707070 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A75AF
#2A75AF
oklch(54.4% 0.116 245.9)
- #9D600F
#9D600F
oklch(54.5% 0.116 65.9)
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 #2A75AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.016
- Nice Blue #107AB0 ΔE 0.016
- Muted Blue #3B719F ΔE 0.026
- Windows Blue #3778BF ΔE 0.028
- French Blue #436BAD ΔE 0.032
- Mid Blue #276AB3 ΔE 0.034
- Ocean Blue #03719C ΔE 0.037
- Dull Blue #49759C ΔE 0.038
Use #2A75AF 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.