#618AA1
Closest named color: Dusty Blue (#5A86AD). oklch(61.2% 0.057 233.5), rgb(97, 138, 161).
Aa
Black text reads best on this color (5.65:1).
About this color
#618AA1 is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.057 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.026 away. Black text reads best on it, at 5.65:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.65:1 |
| White text | 3.71:1 |
Values
| HEX | #618AA1 |
| RGB | rgb(97, 138, 161) |
| HSL | hsl(202, 25%, 51%) |
| OKLCH | oklch(61.2% 0.057 233.5) |
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 #618AA1 | 3.71:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #618AA1 | 5.65:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #618AA1 text on white | 3.71:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #618AA1 text on black | 5.65:1 | AA | Lc -37.0 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D0DBE2
oklch(88.5% 0.015 235.4)
-
Step 300
300
#B0C4D0
oklch(80.9% 0.028 234.1)
-
Step 400
400
#86A6B8
oklch(70.7% 0.044 232.8)
-
Step 500
500 (this color)
#618AA1
oklch(61.2% 0.057 233.5)
-
Step 600
600
#4D7A92
oklch(55.7% 0.062 232.7)
-
Step 700
700
#3E667D
oklch(49% 0.058 234.9)
-
Step 800
800
#335465
oklch(42.8% 0.048 231.9)
-
Step 900
900
#2D4552
oklch(37.6% 0.037 232.7)
-
Step 950
950
#1B2930
oklch(27.1% 0.023 230.3)
#618AA1 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) | #7F89A2 | 0.038 |
| Deuteranopia (no green cones) | #7681A1 | 0.035 |
| Tritanopia (no blue cones) | #499091 | 0.043 |
| Achromatopsia (no color) | #858585 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618AA1
#618AA1
oklch(61.2% 0.057 233.5)
- #A07B64
#A07B64
oklch(61.3% 0.057 53.2)
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 #618AA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.026
- Steel #738595 ΔE 0.027
- Blue Grey #758DA3 ΔE 0.027
- Light Slate Gray #778899 ΔE 0.028
- Silver Lake Blue #778DA9 ΔE 0.032
- Off Blue #5684AE ΔE 0.033
- Slate Gray #708090 ΔE 0.034
- Steel Grey #6F828A ΔE 0.037
Use #618AA1 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.