#2383AF
Closest named color: Blue NCS (#118AB2). oklch(57.6% 0.108 233.7), rgb(35, 131, 175).
Aa
Black text reads best on this color (4.93:1).
About this color
#2383AF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.108 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.020 away. Black text reads best on it, at 4.93:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #2383AF |
| RGB | rgb(35, 131, 175) |
| HSL | hsl(199, 67%, 41%) |
| OKLCH | oklch(57.6% 0.108 233.7) |
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 #2383AF | 4.25:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #2383AF | 4.93:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #2383AF text on white | 4.25:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #2383AF text on black | 4.93:1 | AA | Lc -32.7 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DDE9
oklch(88.6% 0.027 234)
-
Step 300
300
#A2C7DC
oklch(81% 0.049 233.1)
-
Step 400
400
#6EA9CA
oklch(70.7% 0.078 233.9)
-
Step 500
500
#4393BC
oklch(63.1% 0.099 233.8)
-
Step 600
600 (this color)
#2383AF
oklch(57.6% 0.108 233.7)
-
Step 700
700
#056991
oklch(49.1% 0.101 234)
-
Step 800
800
#0E5675
oklch(42.7% 0.083 233.2)
-
Step 900
900
#17475F
oklch(37.7% 0.065 234.2)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#2383AF 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) | #6D82B1 | 0.068 |
| Deuteranopia (no green cones) | #5B75AE | 0.057 |
| Tritanopia (no blue cones) | #008F92 | 0.067 |
| Achromatopsia (no color) | #7B7B7B | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2383AF
#2383AF
oklch(57.6% 0.108 233.7)
- #AA6636
#AA6636
oklch(57.6% 0.108 53.9)
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 #2383AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.020
- Steel Blue #4682B4 ΔE 0.026
- Nice Blue #107AB0 ΔE 0.029
- Cool Blue #4984B8 ΔE 0.032
- Teal Blue #01889F ΔE 0.034
- Cerulean #457B9D ΔE 0.035
- Off Blue #5684AE ΔE 0.040
- Stormy Blue #507B9C ΔE 0.042
Use #2383AF 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.