#2D79BC
Closest named color: Windows Blue (#3778BF). oklch(56.2% 0.127 248.9), rgb(45, 121, 188).
Aa
White text reads best on this color (4.59:1).
About this color
#2D79BC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.127 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.009 away. White text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.57:1 |
| White text | 4.59:1 |
Values
| HEX | #2D79BC |
| RGB | rgb(45, 121, 188) |
| HSL | hsl(208, 61%, 46%) |
| OKLCH | oklch(56.2% 0.127 248.9) |
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 #2D79BC | 4.59:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #2D79BC | 4.57:1 | AA | Lc 32.5 | Non-text elements, placeholder text |
| #2D79BC text on white | 4.59:1 | AA | Lc 71.5 | Content text, not long reading |
| #2D79BC text on black | 4.57:1 | AA | Lc -30.1 | Non-text elements, placeholder text |
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
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBEE
oklch(88.5% 0.032 251.1)
-
Step 300
300
#A5C4E5
oklch(80.9% 0.058 250.2)
-
Step 400
400
#72A5D8
oklch(70.6% 0.093 249.3)
-
Step 500
500
#4B8ECD
oklch(63.1% 0.117 248.9)
-
Step 600
600 (this color)
#2D79BC
oklch(56.2% 0.127 248.9)
-
Step 700
700
#1D64A0
oklch(49.1% 0.118 248.7)
-
Step 800
800
#1B5282
oklch(42.8% 0.098 248.8)
-
Step 900
900
#1D4468
oklch(37.7% 0.076 248.9)
-
Step 950
950
#12283D
oklch(27% 0.048 249)
#2D79BC 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) | #5A7CBF | 0.044 |
| Deuteranopia (no green cones) | #456FBB | 0.031 |
| Tritanopia (no blue cones) | #008991 | 0.094 |
| Achromatopsia (no color) | #757575 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D79BC
#2D79BC
oklch(56.2% 0.127 248.9)
- #A36500
#A36500
oklch(56.2% 0.123 68.5)
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 #2D79BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.009
- Nice Blue #107AB0 ΔE 0.025
- Flat Blue #3C73A8 ΔE 0.032
- Steel Blue #4682B4 ΔE 0.039
- Water Blue #0E87CC ΔE 0.041
- French Blue #436BAD ΔE 0.042
- Cool Blue #4984B8 ΔE 0.043
- Mid Blue #276AB3 ΔE 0.044
Use #2D79BC 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.