#2E83A8
Closest named color: Blue NCS (#118AB2). oklch(57.6% 0.098 230.9), rgb(46, 131, 168).
Aa
Black text reads best on this color (4.92:1).
About this color
#2E83A8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.098 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.023 away. Black text reads best on it, at 4.92:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #2E83A8 |
| RGB | rgb(46, 131, 168) |
| HSL | hsl(198, 57%, 42%) |
| OKLCH | oklch(57.6% 0.098 230.9) |
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 #2E83A8 | 4.26:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #2E83A8 | 4.92:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #2E83A8 text on white | 4.26:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #2E83A8 text on black | 4.92:1 | AA | Lc -32.5 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADCE6
oklch(88.4% 0.024 231.9)
-
Step 300
300
#A5C6D8
oklch(80.8% 0.044 231.9)
-
Step 400
400
#72A9C5
oklch(70.7% 0.071 231.2)
-
Step 500
500
#4A93B6
oklch(63.1% 0.09 231.4)
-
Step 600
600 (this color)
#2E83A8
oklch(57.6% 0.098 230.9)
-
Step 700
700
#17698B
oklch(49% 0.091 231.5)
-
Step 800
800
#175670
oklch(42.7% 0.075 230.3)
-
Step 900
900
#1B475B
oklch(37.7% 0.059 230.9)
-
Step 950
950
#112A35
oklch(27.1% 0.037 229)
#2E83A8 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) | #7081AA | 0.066 |
| Deuteranopia (no green cones) | #6075A7 | 0.057 |
| Tritanopia (no blue cones) | #008D8F | 0.059 |
| Achromatopsia (no color) | #7B7B7B | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E83A8
#2E83A8
oklch(57.6% 0.098 230.9)
- #A76741
#A76741
oklch(57.6% 0.098 50.5)
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 #2E83A8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.023
- Cerulean #457B9D ΔE 0.027
- Teal Blue #01889F ΔE 0.028
- Steel Blue #4682B4 ΔE 0.028
- Stormy Blue #507B9C ΔE 0.034
- Cool Blue #4984B8 ΔE 0.035
- Nice Blue #107AB0 ΔE 0.036
- Off Blue #5684AE ΔE 0.037
Use #2E83A8 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.