#4591BA
Closest named color: Faded Blue (#658CBB). oklch(62.6% 0.097 234.9), rgb(69, 145, 186).
Aa
Black text reads best on this color (6.01:1).
About this color
#4591BA is a medium-light, moderately saturated blue. In OKLCH its lightness is 63%, its chroma 0.097 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.033 away. Black text reads best on it, at 6.01:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.01:1 |
| White text | 3.49:1 |
Values
| HEX | #4591BA |
| RGB | rgb(69, 145, 186) |
| HSL | hsl(201, 46%, 50%) |
| OKLCH | oklch(62.6% 0.097 234.9) |
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 #4591BA | 3.49:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #4591BA | 6.01:1 | AA | Lc 41.8 | Non-text elements, placeholder text |
| #4591BA text on white | 3.49:1 | AA large text | Lc 62.3 | Content text, not long reading |
| #4591BA text on black | 6.01:1 | AA | Lc -39.4 | 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 500.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF2
oklch(93.7% 0.013 233.7)
-
Step 200
200
#C9DCE8
oklch(88.4% 0.026 235.4)
-
Step 300
300
#A4C6DB
oklch(80.9% 0.047 235.3)
-
Step 400
400
#70A9C9
oklch(70.7% 0.076 233.9)
-
Step 500
500 (this color)
#4591BA
oklch(62.6% 0.097 234.9)
-
Step 600
600
#227CA8
oklch(55.5% 0.106 235.2)
-
Step 700
700
#126990
oklch(49.2% 0.098 234.5)
-
Step 800
800
#145575
oklch(42.6% 0.082 235.5)
-
Step 900
900
#19475E
oklch(37.8% 0.063 233.8)
-
Step 950
950
#102937
oklch(26.8% 0.04 235.6)
#4591BA 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) | #7D90BC | 0.060 |
| Deuteranopia (no green cones) | #6D84B9 | 0.051 |
| Tritanopia (no blue cones) | #009C9F | 0.067 |
| Achromatopsia (no color) | #898989 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4591BA
#4591BA
oklch(62.6% 0.097 234.9)
- #B5774C
#B5774C
oklch(62.5% 0.097 54.7)
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 #4591BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.034
- Cool Blue #4984B8 ΔE 0.037
- Off Blue #5684AE ΔE 0.037
- Blue NCS #118AB2 ΔE 0.039
- Steel Blue #4682B4 ΔE 0.042
- Water Blue #0E87CC ΔE 0.054
- Silver Lake Blue #778DA9 ΔE 0.054
Use #4591BA 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.